— 100 



Pachydoiniis Morris 184 , 



gen. Arcaceorum? — Dana 1849 

 Geol. 694, gen. emendat emissa 

 Maeonia. = Megadesmus Sow., 

 t. Dana. 



— Pacliyota Aq. 1846, nec 1837 



1. c. 

 Pacltypoma Gray 1850 Fig. IV. 



88, g. Imperatorinorum : Trochus 



caelatus Chemn. 

 Pachyrisma Morr. et Lycett 



1850 Quart. Journ. geol. Soc. VI. 



399, n. g. Lamellibranchiat. 



— Pacliystoma Guild. — non 



Gray 1. c. 

 Padiystoma Gkay 1840 Syn. 



Br. M., et 1842 ib. p. 90, gen. 



Littorinidarum. — 1847 Zool.Proc. 



152, g. Melaniainorum : Melania 



marginata Lmck. 

 Pachystoma Alb. 1850 Hel. 125, 



sect. Helicis : H. aspera Fer. 

 Pacltystyla Moech 1852 Catal- 



Yold. 2 , sect. Helicis : H. mauri- 



tiana Lam. 



— PacltytOS Defr. 1824 Tabl. 



foss. 109 , g. Pectinidarum. 

 Pacyodon Beck mscr. , t. Gray 

 1847 Zool. Proc. 191. = Ero- 

 dona Daud. 



— Padolluii Mtf. , Stomatellas 



no7i complectitur. 

 Pagana Gist. 1848 Natg. 168. = 

 Vitriua Drp. 



— Pagoda Ag. 1846, nec 18371. c. 

 Palliata Nitzsch 18 . . . ., teste 



Leuck. Mori^h. 125. = Mollusca 

 Poli. 

 [Palliibrancliiata] Palliobran- 

 ches Blainv. 1814 N. Bull. phi- 

 lom. 179, ordo Acephalaeorum : 

 Lingula , Terebratula , Orbicula, 

 ?Hyalea, ?Pneumodermon. — 1816 

 ib. 122, ordo Acephalophororum. 



— Pallium Mart. 1774 Vz. 130. 



— Palmarium Mtf. — an plane 



fictum genus? 

 Palmatopoda Mayer 1849 Verh. 

 d. V. preuss. Rheinl , ordo Gaste- 

 romeleorum. = Gastropoda. 



— Paludestrina D'Orb. 1840 



Voy. Moll. 381 , subg. Paludinae, 

 cujus species Gray 1847 vel ad 

 Hydrobias , vel ad Lithoglyphos 

 remittit. 



— Paludina Lmck. 1812 Extr. 



— Paliidinella Pfk.— A Schmidt 



1851 in Ztschr. f. Malak. pro 1850. 

 p. 116. — Pfr. et RossM. ib. 

 Paliidinella Lowe 1852 in Ann. 

 Mag. IX. Apr. et Synops. dia- 

 gnost. lljsect. Pupae; typi novi. 



— [Paludinidae] Paludinides 



Riss. 



— PaliidinidaeD'ORB. (non 1840 



Voy.) 1841 Cub. 1. c. , genera: 

 Paludina, Paludestrina, Melania, 

 Turritella , Scalaria , Rissoa , Ris- 

 soina. 



— Paludomus Swains. — Gray 



1847 Zool. Proc. 155, g. ?Vivi- 

 paridarum : Melania conica; inse- 

 ritur ?Hemimitra. — Reeve 184. 

 Conch ic. , Monogr. 



— Pandora Oken 1817 Isis 1166. 

 [Pandorae] Pandores Desh. 1847 



Expl. Alg. Moll. 239, fam. Ace- 

 phal. : Pandora, Myadora. 



— Panopaea Lamck. (no/iMenard.) 



= Panopea M. 



— Panopea Men. 1807 Ann. Mus. 



IX. 135. (Panope sive Panopea 



Virgilio.) 

 Paphia Gray 1847 Zool. Proc. 



186, g. Paphiadarum. Syn. Do- 



nacilla Lmck. q. cf. 

 Papbiadae Gray 1847 Zool. Proc. 



186, fam. Phyllopodum (antea 



